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Multiwavelength surgical laser

  • US 9,220,563 B1
  • Filed: 12/29/2014
  • Issued: 12/29/2015
  • Est. Priority Date: 12/29/2014
  • Status: Active Grant
First Claim
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1. A multiwavelength surgical tool comprising:

  • a plurality of laser sources each having an output wavelength in the range of about 340 nm to about 460 nm, the plurality of laser sources including a first-laser source and a second laser-source, the first-laser source and the second-laser source having output wavelengths which differ by at least 2 nm,the first-laser source having an output wavelength which corresponds to an absorption maximum of a first-surgical chromophore in the range of about 340 nm to about 460 nm;

    the second-laser source having an output wavelength which corresponds to an absorption maximum of a second-surgical chromophore in the range of about 340 nm to about 460 nm; and

    the plurality of laser sources optically coupled to an interventional or diagnostic laser-delivery device;

    wherein each output wavelength corresponds to an absorption maximum of a surgical chromophore, where the absorption maximum of the surgical chromophore is selected from an absorption peak, a bathochromic shift, and a hypochromic shift of an in vivo material;

    the in vivo material is selected from an endogenous chromophore;

    a thermal degradation product of the endogenous chromophore;

    a light-induced variant of the endogenous chromophore;

    a thermal degradation product of the light-induced variant of the endogenous chromophore;

    a recombinant product of the endogenous chromophore; and

    a mixture thereof.

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